Scoop scale



Dec. 30, 1930. J. M. BENSINGER SCOOP SCALE Filed April 11, 192B ww/wtozQ JM Bew/s/n er aha/map Patented Dec. 30, 1930 UNIT" ATES JAMES M.IBENSINGE'R, F GADSDEN, ALABAMA, ASSIGNOB OF ONE-HALF TO ALEXANDERHOWELL, OF GADSDEN, ALABAMA i SCOOP Application filed April 11,

This invention relates to weighing apparatus and has particularreference to hand scales of the scoop type.

Among the objects Which the invention has in view are: to provide anovel spring mechanism for scoop scales; to provide in a scoop scale, anovel means for adjusting the scale springs; to provide in a springscoop scale, means for locking the relatively movable scale in partsagainst movement; to provide in a scale of this character, a manuallyreleasable lock means for controlling the relative movement betweenelements of the scale; and generally to provide anovel and improvedstructural 11., arrangement of elements in spring operated scoop scales.

With these and such other objects in view as will be apparent from thedescription, the invention resides in the novel construction,combination and arrangement of parts hereinafter described and claimedand illustrated in the accompanying drawings wherein is shown onepractical, physical embodiment of the principles of my invention.

. Figure l is an elevation of a scoop scale constructed'in accordancewith the invention.

Figure 2 is an enlarged vertical section taken therethrough.

In detail, the invention comprises the conventional scoop '5 supportedat the end of a tubular standard 6 which is longitudinally slidablewithin a tubular handle member, relative movement between the standardand the handle being prevented as desired by the engagement of a latch 8pivoted between lugs 9 carried on the standard, into an aperture 10formed for the purpose in the body of the standard. The latch 8 isnormally held. in looking position by the spring 11 and may 49 bereleased by depression of its handle portion 12 against the body of thehandle 7 so that the weighing action of the scale may be efiected whenthe device is held upright in a vertical position.

l/Vithin the tubular chamber formed by the standard and the handle aredisposed a plurality of coil expansion springs, preferably three innumber as at 13, 14 and 15, which springs surround an adjusting rod 16disposed longitudinally within the standard 6 SCALE 1928. Serial No.269,053.

and passed through the bottom of the scoop 5 at one end for threadedengagement with an adjusting nut 17 in the scoop.

The rod 16 carries intermediate its ends rigidly attached stationarywasher or collar I 18 of substantially the same diameter as the internaldiameter of the bore of the standard ,6. This member 18 provides abearing for one end of the upper spring 18, which spring has itsopposite end in bearing engagement against the bottom oi the scoop. Thelower end of the rod 16 is threaded to receive the bottom adjusting nut19 above which is disposed a movable washer 20 slidable over the rod 16to provide a bearing for the lower end of the intermediate springl l,the opposite end of which spring has abearing against the rigid washer18 carried by the rod.

Threaded internally into the lower end of the handle 7 is a springadjusting nut 21, which forms a lower bearing for thelowermostspring 15of the series, the opposite end of which spring has a bearing againstthe washer 20 above the nut 19. Following the nut 21 a jam nut 22 isthreaded into the handle to provide an anchorage for the bottomadjusting nut 21. I

The handle 7 is provided with a longitudinal slot23,one side of which isprovidedwith suitable indicia 24 for cooperation with a pointer 25carried by the standard 6 and movable in the slots 23 under the relativemovement between the parts.

In the operation of the scale the lock 8 is normally engaged in itsrecess 10 whereby to provide a rigid handle for the scoop so that thesame may be utilized in scooping up the material to be weighed withoutcausing any relative movement between the standard 6 and the handle 7.This is an important feaso ture of the invention for the reason that iteliminates undue wear and stress upon the spring assembly. With thematerial received in the scoop the handle is brought to an uprightvertical position and the latch handle 12 depressed to release thestandard 6, permitting the weight of the material in the scoop todepress the standard and the rod 16 against the combined action of thethree springs, giving the reading on the scale 24. It will he apparentthat each component spring of the series may have an individualadjustment, the nut 17 effecting an adjustment of the upper spring 13;the nut 19 effecting an adjustment of the intermediate spring 14; andthe nut 21 efl'ecting an adjustment of the lower spring 15. By thisarrangement the scale may be delicately adjusted to a very fine balanceand the setting of the pointer 25 may be brought to any desired point onthe scale 24 before weighing, depending upon the particular adjustmentof the various springs.

I'Vhile in this preferred embodiment of the invention I have illustratedand described certain details entering into the construction andoperation thereof, I desire it to be understood that the invention isnot t be limited thereto, but that any desired changes and modificationsmay be made in the structural details as will fall within the scope ofthe invention as claimed.

I claim:

l. A scoop scale comprising, a scoop, a tu bular standard secured.thereto, a tubular handle slidably receiving said standard, balancesprings disposed in said standard and handle, an adjusting rod disposedlongitudinally in said standard and extending through said scoop at oneend, means on said rod for effooting individual adjustment of certain ofsaid springs, and means carried by the handle for effecting individualadjustment of another of said springs.

2. In a scoop scale, the combination with a hollow handle member havinga hollow standard slidable therein and provided with a scoop at itsouter end, of an adjusting rod disposed in said standard, a springbearing member rigidly attached to said rod intermediate its ends, aplurality of coiled expansion springs surrounding said rod and having abearing against said bearing member, means on the opposite ends of saidrod for adjusting said springs from opposite sides of said bearingmember, an expansion spring disposed between the lower end portion ofsaid rod and the bottom end of said handle, and means having threadedengagement with the bottom end of the handle for retaining and adjustingsaid last named spring.

In testimony whereof I afliX my signature.

JAMES M. BENSINGER.

